设置布局 子窗体的布局 this.LayoutMdi(MdiLayout.TileVertical ) foreach Form childForm in this.MdiChildren childForm.Vi.wState FormWindowState.Minimized; 遍历子窗体 1818 设置布局 this.LayoutMdi( MdiLayout.TileVertical ); foreach ( Form childForm in this.MdiChildren ) childForm.WindowState = FormWindowState.Minimized; 子窗体的布局 遍历子窗体